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# A list links up multiple objects together to make them easier to manage.
#
# Try to make all objects in a single list of the same type, it'll help avoid bugs.
# If you want to store multiple types in a single list, use an exclusive-container.
container list [
value:location
next:address:list
]
# result:address:list <- push x:location, in:address:list
recipe push [
local-scope
x:location <- next-ingredient
in:address:list <- next-ingredient
result:address:list <- new list:type
val:address:location <- get-address result:address:list/deref, value:offset
val:address:location/deref <- copy x:location
next:address:address:list <- get-address result:address:list/deref, next:offset
next:address:address:list/deref <- copy in:address:list
reply result:address:list
]
# result:location <- first in:address:list
recipe first [
local-scope
in:address:list <- next-ingredient
result:location <- get in:address:list/deref, value:offset
reply result:location
]
# result:address:list <- rest in:address:list
recipe rest [
local-scope
in:address:list <- next-ingredient
result:address:list <- get in:address:list/deref, next:offset
reply result:address:list
]
scenario list-handling [
run [
#? $start-tracing #? 1
1:address:list <- copy 0:literal
1:address:list <- push 3:literal, 1:address:list
1:address:list <- push 4:literal, 1:address:list
1:address:list <- push 5:literal, 1:address:list
2:number <- first 1:address:list
1:address:list <- rest 1:address:list
3:number <- first 1:address:list
1:address:list <- rest 1:address:list
4:number <- first 1:address:list
1:address:list <- rest 1:address:list
]
memory-should-contain [
1 <- 0 # empty to empty, dust to dust..
2 <- 5
3 <- 4
4 <- 3
]
]
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